Report - Contact Form 7 Extension For Mailchimp 0.5.28

Does "Contact Form 7 Extension For Mailchimp" work with WordPress 5.5.3 and PHP 7.4.8? A smoke test was performed on 2020-10-31 04:22:37 UTC.

Summary

Errors

1	PHP notices
	No JavaScript exceptions
	All test pages loaded successfully
	No resource errors

Performance

Memory usage: 198.62 KiB
The average PHP memory usage increased by this amount after activating by the plugin.

Page speed impact: 0.026 seconds
The average page load time increased by this amount after activating the plugin.

Environment

WordPress version	5.5.3
PHP version	7.4.8
MySQL version	8.0.21
PHP memory limit	256M

Plugin Info

Last updated	2025-10-24T23:50:00+00:00
Active installs	50,000+
WordPress.org page	https://wordpress.org/plugins/contact-form-7-mailchimp-extension/
Badges	Get badge code

Pages 5

Plugins ‹ Test site — WordPress

URL	/wp-admin/plugins.php?plugin_status=all&paged=1&s
Requested URL	/wp-admin/plugins.php?action=activate&plugin=contact-form-7-mailchimp-extension%2Fchimpmatic-lite.php&plugin_status=all&paged=1&s&_wpnonce=7a914b6471
Aspect	after-activation
HTTP status	200
Load time	1.565 s
Memory usage	3.98 MiB
JS errors	None
Resource errors	None

Contact

URL	/wp-admin/admin.php?page=wpcf7
Aspect	menu-item
HTTP status	200
Load time	0.331 s
Memory usage	2.89 MiB
JS errors	None
Resource errors	None

Contact → Add New

URL	/wp-admin/admin.php?page=wpcf7-new
Aspect	menu-item
HTTP status	200
Load time	1.684 s
Memory usage	3.04 MiB
JS errors	None
Resource errors	None

Contact → Integration

URL	/wp-admin/admin.php?page=wpcf7-integration
Aspect	menu-item
HTTP status	200
Load time	0.243 s
Memory usage	2.79 MiB
JS errors	None
Resource errors	None

Test site – Just another WordPress site

URL	/
Aspect	front-page
HTTP status	200
Load time	0.308 s
Memory usage	2.74 MiB
JS errors	None
Resource errors	None

Benchmark

URL	Load time			Memory usage
URL	Inactive	Active	Change	Inactive	Active	Change
/wp-admin/index.php	0.537 s	0.524 s	-0.013 s	2.75 MiB	2.94 MiB	+ 186.68 KiB
/wp-admin/edit.php	0.275 s	0.312 s	+0.037 s	2.8 MiB	2.98 MiB	+ 192.16 KiB
/wp-admin/post-new.php	1.738 s	2.226 s	+0.488 s	4.55 MiB	4.72 MiB	+ 175.2 KiB
/wp-admin/upload.php	0.722 s	0.518 s	-0.204 s	2.63 MiB	2.81 MiB	+ 185.55 KiB
/wp-admin/options-writing.php	0.212 s	0.198 s	-0.014 s	2.64 MiB	2.86 MiB	+ 217.53 KiB
/wp-admin/media-new.php	0.280 s	0.234 s	-0.046 s	2.61 MiB	2.79 MiB	+ 185.72 KiB
/wp-admin/edit-tags.php?taxonomy=category	0.262 s	0.233 s	-0.029 s	2.64 MiB	2.89 MiB	+ 250.66 KiB
/wp-admin/post-new.php?post_type=page	1.581 s	1.838 s	+0.257 s	4.53 MiB	4.7 MiB	+ 170.85 KiB
/wp-admin/options-discussion.php	0.515 s	0.363 s	-0.152 s	2.61 MiB	2.79 MiB	+ 186.05 KiB
/wp-admin/edit-comments.php	0.250 s	0.281 s	+0.031 s	2.65 MiB	2.89 MiB	+ 249.58 KiB
/	0.342 s	0.278 s	-0.064 s	2.56 MiB	2.74 MiB	+ 184.83 KiB
Average	0.610 s	0.637 s	+0.026 s	3 MiB	3.19 MiB	+ 198.62 KiB

Additions

Things that the plugin adds to the site. This section is not intended to be comprehensive. The test tool only looks for a few specific types of added content.

Options `wp_options` 9

cf7_mch_
chimpmatic-update
mce_conten_panel_lateralbanner
mce_conten_panel_master
mce_conten_panel_welcome
mce_conten_tittle_master
mce_loyalty
mce_show_update_news
wpcf7

Custom Post Types 1

ID	Name
wpcf7_contact_form	Contact Forms

PHP Error Log 1 lines

[31-Oct-2020 04:22:58 UTC] PHP Notice:  Trying to access array offset on value of type null in /wp-content/plugins/contact-form-7-mailchimp-extension/lib/find.php on line 157

Contact Form 7 Extension For Mailchimp 0.5.28